Why did my wife ask me to allow her to call me another mans name?

She says the name "Kyle" has always turned her on. (incedintally that's not my name) She asked me akwardly, almost politely before making love yesterday. She said it in different tones and fashions which kind of made me weirded out but oh well we've been married a few years i figured she got bored of the same ole same ole. No biggie, what bothered me was halfway into it, and we were going very rough and she said oddly specific she said "this is how I'm gonna be everytime she pes." and cont'd on like nothing happened. It just had me curious such a random comment? I've looked at my daughters courses online and her biology teacher is named kyle, and futhermore happens to live about 4 blocks away. And i know she's carried her to tutoring before. Am I being paranoid? Has this happened before to any other guys wives wanting to call them another name?